我使用的是 Ubuntu 16.04 LTS。我的目标是连接到使用 WPA AES/TKIP 加密协议的 Wifi 网络。我反复检查了密码；该连接在 macOS 和我的 iPhone 上有效，但在 Ubuntu 上无效。
这可能是同样的问题这里，但遗憾的是所提供的帮助并未解决我的问题。
sudo lspci -s 01:00.0 -vv输出：
01:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
Subsystem: Option N.V. Option GTM67x PCIe WiFi Adapter
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f7200000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA PME(D0+,D1+,D2-,D3hot+,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [60] Express (v2) Legacy Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <64us
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-, OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr+ BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Device Serial Number 00-15-17-ff-ff-24-14-12
Capabilities: [170 v1] Power Budgeting <?>
Kernel driver in use: ath9k
Kernel modules: ath9k
dmesg | tail -n 29输出：
[ 4681.522874] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 4681.524081] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 4693.558908] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 5470.321252] wlp1s0: authenticate with b2:...:78
[ 5470.334748] wlp1s0: send auth to b2:...:78 (try 1/3)
[ 5470.338779] wlp1s0: authenticated
[ 5470.343477] wlp1s0: associate with b2:...:78 (try 1/3)
[ 5470.352418] wlp1s0: RX AssocResp from b2:...:78 (capab=0x411 status=0 aid=4)
[ 5470.352576] wlp1s0: associated
[ 5476.597713] wlp1s0: deauthenticated from b2:...:78 (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
[ 5488.915548] wlp1s0: authenticate with b2:...:78
[ 5488.930278] wlp1s0: send auth to b2:...:78 (try 1/3)
[ 5488.931998] wlp1s0: authenticated
[ 5488.934364] wlp1s0: associate with b2:...:78 (try 1/3)
[ 5488.943316] wlp1s0: RX AssocResp from b2:...:78 (capab=0x411 status=0 aid=4)
[ 5488.943476] wlp1s0: associated
[ 5494.695405] wlp1s0: deauthenticating from b2:...:78 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 5499.363802] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready
nmcli device wifi list输出：
* SSID MODE CHAN RATE SIGNAL BARS SECURITY
FreeWifi Infra 11 54 Mbit/s 62 ***
FreeWifi_secure Infra 11 54 Mbit/s 62 *** WPA1 802.1X
Kougelhopf Infra 11 54 Mbit/s 62 *** WPA1
porchif Infra 11 54 Mbit/s 37 ** WPA1
NUMERICABLE-xxxx Infra 11 54 Mbit/s 35 ** WPA1 WPA2
orange Infra 6 54 Mbit/s 30 *
DIRECT-xxxxxx Series Infra 1 54 Mbit/s 29 * WPA2
FreeWifi_secure Infra 6 54 Mbit/s 29 * WPA2 802.1X
XXXX-xxxx Infra 6 54 Mbit/s 27 * WPA1 WPA2
FreeWifi_secure Infra 11 54 Mbit/s 27 * WPA2 802.1X
Bbox-xxxxxxxx Infra 1 54 Mbit/s 25 * WPA1 WPA2
FreeWifi Infra 11 54 Mbit/s 25 *
Livebox-xxxx Infra 6 54 Mbit/s 22 * WPA1 WPA2
（我想连接到Kougelhopf路由器。）
nmcli -f GENERAL,WIFI-PROPERTIES dev show wlp1s0输出：
GENERAL.DEVICE: wlp1s0
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Qualcomm Atheros
GENERAL.PRODUCT: AR9285 Wireless Network Adapter (PCI-Express) (Option GTM67x PCIe WiFi Adapter)
GENERAL.DRIVER: ath9k
GENERAL.DRIVER-VERSION: 4.15.0-58-generic
GENERAL.FIRMWARE-VERSION: N/A
GENERAL.HWADDR: 00:0C:E3:6F:60:EE
GENERAL.MTU: 0
GENERAL.STATE: 30 (disconnected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/net/wlp1s0
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
WIFI-PROPERTIES.AP: yes
WIFI-PROPERTIES.ADHOC: yes
WIFI-PROPERTIES.2GHZ: yes
WIFI-PROPERTIES.5GHZ: no
sudo systemctl list-unit-files --state=enabled | sort输出：
58 unit files listed.
NetworkManager-dispatcher.service enabled
NetworkManager-wait-online.service enabled
NetworkManager.service enabled
UNIT FILE STATE
accounts-daemon.service enabled
acpid.path enabled
acpid.socket enabled
anacron-resume.service enabled
anacron.service enabled
apport-forward.socket enabled
apt-daily-upgrade.timer enabled
apt-daily.timer enabled
[email protected] enabled
avahi-daemon.service enabled
avahi-daemon.socket enabled
bluetooth.service enabled
brltty.service enabled
cron.service enabled
cups-browsed.service enabled
cups.path enabled
cups.service enabled
cups.socket enabled
dbus-org.bluez.service enabled
dbus-org.freedesktop.Avahi.service enabled
dbus-org.freedesktop.nm-dispatcher.service enabled
dbus-org.freedesktop.thermald.service enabled
display-manager.service enabled
dns-clean.service enabled
[email protected] enabled
gpu-manager.service enabled
lightdm.service enabled
network-manager.service enabled
networking.service enabled
pppd-dns.service enabled
remote-fs.target enabled
resolvconf.service enabled
rsyslog.service enabled
snap-core-7396.mount enabled
snap-core18-1074.mount enabled
snap-gnome\x2d3\x2d26\x2d1604-90.mount enabled
snap-gtk\x2dcommon\x2dthemes-1313.mount enabled
snap-mailspring-374.mount enabled
snap-vlc-1049.mount enabled
snap-zenity-18.mount enabled
snapd.autoimport.service enabled
snapd.core-fixup.service enabled
snapd.seeded.service enabled
snapd.service enabled
snapd.snap-repair.timer enabled
snapd.socket enabled
snapd.system-shutdown.service enabled
syslog.service enabled
systemd-timesyncd.service enabled
thermald.service enabled
ufw.service enabled
unattended-upgrades.service enabled
ureadahead.service enabled
uuidd.socket enabled
whoopsie.service enabled
并iwconfig wlp1s0输出：
wlp1s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=13 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
有人有想法吗？